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Apertis

Compare models

Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.

  1. Claude Sonnet 5.5AnthropicRemove
  2. Perceptron Mk1.5PerceptronRemove
  3. Voxtral Small 24B 2507 STTMistral AIRemove
  4. S1Fish AudioRemove

4 is the maximum. Remove one to add another.

claude-sonnet-5.5 vs perceptron-mk1.5 vs voxtral-small-24b-2507-stt vs s1
AttributeClaude Sonnet 5.5claude-sonnet-5.5Perceptron Mk1.5perceptron-mk1.5Voxtral Small 24B 2507 STTvoxtral-small-24b-2507-sttS1s1
Pricing
Input$2.00 / 1M$0.15 / 1M$0 / 1M$0 / 1M
Output$10.00 / 1M$1.50 / 1M$0 / 1M$0 / 1M
Cache Write (5m)$2.50 / 1M$0.15 / 1MNot applicableNot applicable
Cache Write (1h)$4.00 / 1M$0.15 / 1MNot applicableNot applicable
Cache Read$0.20 / 1M$0.15 / 1MNot applicableNot applicable
Web Search$0 / 1M$0 / 1M$0 / 1M$0 / 1M
Context
Max context1M36.9KN/AN/A
Max outputN/AN/AN/AN/A
Capabilities
VisionYesNoNoNo
Function CallingYesNoNoNo
JSON ModeYesNoNoNo
StreamingYesYesNoNo
Catalogue
ProviderAnthropicPerceptronMistral AIFish Audio
Categorychatchatvoicevoice
Charge typePay As You GoPay As You GoPay As You GoPay As You Go
Released—2026-09-252026-08-132026-07-29
Description
SummaryClaude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, serving as a direct upgrade to Sonnet 5. It excels at feature development, bug fixing, and creating polished documents, presentations, and spreadsheets, while offering clearer writing and communication than its predecessor.Perceptron Mk1.5 chat model that accepts audio input. Audio and text input are billed per token.Mistral AI Voxtral Small (24B) speech-to-text. Billed per second of audio.Fish Audio S1 text-to-speech. Billed per UTF-8 byte of input text.